Photoemission, absorption, scattering (3)

[LSC5-02(Invited)] O K-edge RIXS study of Os Electronic Structures in 5d² Double Perovskite Ba₂CaOsO₆

*Jun Okamoto¹, Goro Shibata², Hiroaki Hayashi^3,4, Hsiao-Yu Huang¹, Amol Singh¹, Arata Tanaka⁵, Kazunari Yamaura^3,4, Yu S. Posonov⁶, Sergey V. Streltsov^6,7, Chien-Te Chen¹, Atsushi Fujimori^1,8,9, Di-Jing Huang^1,10,11 (1. National Synchrotron Radiation Research Center, Taiwan, 2. Materials Science Research Center, Japan Atomic Energy Agency, 3. Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 4. Graduate School of Chemical Science and Engineering, Hokkaido University, 5. Department of Quantum Matter, Hiroshima University, 6. Institute of Metal Physics, Russia, 7. Department of Theoretical Physics and Applied Mathematics, Ural Federal University, 8. Department of Physics and Center for Quantum Technology, National Tsing Hua University, 9. Department of Physics, The University of Tokyo, 10. Department of Physics, National Tsing Hua University, 11. Department of Physics, National Yang Ming Chao Tung University)

We investigated the Os 5d electronic structures of 5d² double-perovskite Ba₂CaOsO₆ that are proposed to exhibit magnetic octupole order using the O K-edge resonant inelastic X-ray scattering through the strong hybridization between the O 2p and Os 5d orbitals.